Drying oven device for medicine powder production
By improving the structural design and hot air conveying method of the powder production drying oven, the problems of uneven drying and heat loss in traditional equipment have been solved, and a more efficient powder drying process has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional powder drying ovens suffer from uneven drying, significant heat loss, and low drying efficiency.
A device comprising a circular oven, a sealing cover, a base, a support frame, positioning columns, a mesh tray, a drive motor, and a drying fan is designed. By evenly laying multiple mesh trays and designing a rotatable circular oven, combined with a liftable drying fan and a push cylinder assembly, the device achieves uniform distribution and direct delivery of hot air, reducing heat loss. The drive motor also rotates the oven to improve drying efficiency.
This method achieves uniform drying of the medicinal powder, improves drying efficiency, reduces heat loss, and lowers production costs and energy consumption.
Smart Images

Figure CN224004103U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oven equipment technology, and in particular to an oven equipment for pharmaceutical powder production. Background Technology
[0002] Drying is a crucial step in the production of medicinal powders. It is necessary to dry the powders to prevent them from clumping and to maintain their medicinal properties. The drying oven used in the production of medicinal powders is basically composed of the following components: the main structure of the oven, heating equipment, and a fan.
[0003] Traditional medicinal powder drying involves pushing the pulverized powder into the drying chamber for simultaneous drying. This method often results in uneven drying of the powder due to the difficulty in distributing hot air evenly throughout the oven. Some areas may be over-dried while others are under-dried. Additionally, the hot air is prone to heat loss during transport, leading to low drying efficiency. These issues not only affect the quality of the medicinal powder but also increase production costs and energy consumption.
[0004] Therefore, in response to the problems of uneven drying, large heat loss and low drying efficiency of the traditional drying ovens mentioned above, a drying oven for pharmaceutical powder production can be designed. Utility Model Content
[0005] In order to overcome the problems of uneven drying, large heat loss and low drying efficiency of traditional drying ovens.
[0006] The technical solution is as follows: A powder production drying oven device includes a circular drying oven, a sealing cover, a base, a support frame, a positioning column, a mesh tray, a drive motor, and a drying fan; the upper end of the circular drying oven is equipped with a sealing cover that matches the size and shape of the circular drying oven; the lower end of the circular drying oven is equipped with a base to support the entire drying oven; a symmetrical support frame is welded to the upper end of the base; a positioning column is fixedly connected to the lower end of the sealing cover; a mesh tray for spreading the powder is slidably connected to the outside of the positioning column; a drive motor for controlling the rotation of the circular drying oven is installed on the right end of the support frame; and a liftable drying fan is installed inside the base.
[0007] Furthermore, the circular oven and the sealing cover are both welded with matching connecting blocks at their left and right ends; a telescopic cylinder for lifting the sealing cover is installed between the connecting blocks of the circular oven and the connecting blocks of the sealing cover.
[0008] Furthermore, both the lower surface of the circular oven and the upper surface of the sealing cover are equipped with breathable meshes to allow hot air to pass through.
[0009] Furthermore, there are four positioning posts; the positioning posts are evenly distributed along the circular path; and vertically evenly distributed spring pins are installed on the outer side of the positioning posts.
[0010] Furthermore, a limiting sleeve matching the position of the positioning post is installed on the upper end of the mesh tray; a positioning hole is opened on the outer side of the limiting sleeve; the positioning hole is engaged with the spring pin.
[0011] Furthermore, a mounting plate is provided on the outside of the drying fan; the mounting plate is located on the inside of the base and the two are slidably connected; a push cylinder assembly is provided between the mounting plate and the base.
[0012] Furthermore, a sealing ring is installed on the outside of the mesh tray to isolate multiple independent spaces inside the circular oven.
[0013] The beneficial effects are: This utility model, through the uniform laying of multiple mesh trays and the design of a reversible circular oven, allows hot air to contact the powder more evenly, thereby greatly improving the drying uniformity. In addition, the reversible design allows the powder stored inside to move, thus dispersing the powder evenly and preventing clumping.
[0014] By driving the cylinder assembly to move the mounting plate up and down, the drying fan can directly deliver hot air into the oven, which greatly shortens the hot air delivery path and reduces heat loss.
[0015] By starting the drive motor to rotate the circular drying oven, the powder can be dried from different angles, further improving drying efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0017] Figure 2 This is another overall three-dimensional structural diagram of the present invention;
[0018] Figure 3 A three-dimensional structural diagram of the circular oven and sealing cover of this utility model when opened;
[0019] Figure 4 This is a three-dimensional structural diagram of the positioning post and mesh tray of this utility model.
[0020] Figure 5 This is a three-dimensional structural diagram of the drying fan of this utility model after it is raised.
[0021] In the attached diagram, the following are the reference numerals: 1. Circular drying oven; 2. Sealing cover; 3. Base; 4. Support frame; 5. Positioning column; 6. Mesh tray; 7. Drive motor; 8. Drying fan; 9. Connecting block; 10. Telescopic cylinder; 11. Ventilation mesh; 12. Spring pin; 13. Limiting sleeve; 14. Positioning hole; 15. Mounting plate; 16. Push cylinder assembly; 17. Sealing ring. Detailed Implementation
[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0023] Example 1
[0024] like Figures 1-5 As shown, the powder production drying oven device includes a circular drying oven 1; characterized in that it further includes a sealing cover 2, a base 3, a support frame 4, a positioning column 5, a mesh tray 6, a drive motor 7, and a drying fan 8; the upper end of the circular drying oven 1 is provided with a sealing cover 2 that matches the size and shape of the circular drying oven 1; the lower end of the circular drying oven 1 is provided with a base 3 for supporting the entire drying oven; the upper end of the base 3 is welded with a left-right symmetrical support frame 4; the lower end of the sealing cover 2 is fixedly connected to the positioning column 5; the outside of the positioning column 5 is slidably connected to the mesh tray 6 for spreading the powder; the right end of the support frame 4 is equipped with a drive motor 7 for controlling the rotation of the circular drying oven 1; the inner side of the base 3 is equipped with a liftable drying fan 8.
[0025] The circular oven 1 and the sealing cover 2 are both welded with matching connecting blocks 9 at their left and right ends; a telescopic cylinder 10 for lifting the sealing cover 2 is installed between the connecting blocks 9 of the circular oven 1 and the connecting blocks 9 of the sealing cover 2.
[0026] Both the lower surface of the circular oven 1 and the upper surface of the sealing cover 2 are provided with breathable mesh 11 for hot air to pass through.
[0027] A mounting plate 15 is provided on the outside of the drying fan 8; the mounting plate 15 is located inside the base 3 and the two are slidably connected; a push cylinder assembly 16 is provided between the mounting plate 15 and the base 3.
[0028] A sealing ring 17 is installed on the outside of the mesh tray 6 to isolate multiple independent spaces inside the circular oven 1.
[0029] When using this drying oven, the first step is to evenly spread the powder to be dried on multiple mesh trays 6. Be careful not to pile the powder too thickly, so as not to affect the drying effect.
[0030] The second step is to install the mesh tray 6 on the positioning post 5, and then operate the telescopic cylinder 10 to make the sealing cover 2 tightly cover the round oven 1.
[0031] The third step is to start the drying fan 8, adjust it to the appropriate wind speed and temperature, and drive the mounting plate 15 and the drying fan 8 to move upward from the base 3 by pushing the cylinder group 16. With this design, the hot air generated by the drying fan 8 can directly pass through the ventilated net 11 and reach the inside of the circular oven 1, which greatly shortens the hot air delivery path and reduces heat loss.
[0032] The fourth step is to achieve a more uniform drying effect for the medicinal powder. The drying fan 8 is reset, and the drive motor 7 is started to rotate the circular oven 1. The drying fan 8 rises again, which not only dries the medicinal powder from the other end of the circular oven 1, greatly improving the drying efficiency, but also allows the medicinal powder to be stirred in the independent space isolated by the sealing ring 17, so that the powder is dispersed and avoids clumping.
[0033] Example 2
[0034] Based on Example 1, such as Figure 3 , Figure 4 As shown, it also includes four positioning posts 5; the positioning posts 5 are evenly distributed along the circular path; and spring pins 12 are installed vertically evenly distributed on the outer side of the positioning posts 5.
[0035] The upper end of the mesh tray 6 is equipped with a limiting sleeve 13 that matches the position of the positioning post 5; the limiting sleeve 13 has a positioning hole 14 on its outer side; the positioning hole 14 is engaged with the spring pin 12.
[0036] When using this oven device, the issues of disassembling and assembling the mesh tray 6 and adjusting the mesh tray 6 are also taken into consideration. The specific installation steps are as follows: slide the mesh tray 6 on the positioning column 5 and adjust it to the required height. Then, engage the spring pin 12 at the corresponding position with the positioning hole 14 on the limiting slide sleeve 13 to fix the position of the mesh tray 6.
Claims
1. A pharmaceutical powder production oven apparatus comprising a circular oven (1); characterized in that: It also includes a sealing cover (2), base (3), support frame (4), positioning column (5), mesh tray (6), drive motor (7), drying fan (8); the upper end of the circular oven (1) is provided with a sealing cover (2) which is matched with the size and shape of the circular oven (1); the lower end of the circular oven (1) is provided with a base (3) for supporting the entire oven; the upper end of the base (3) is welded with left and right symmetrical support frames (4); the lower end of the sealing cover (2) is fixedly connected with positioning columns (5); the outer side of the positioning column (5) is slidably connected with a mesh tray (6) for spreading the powder; the right end of the support frame (4) is provided with a drive motor (7) for controlling the overturning of the circular oven (1); the inner side of the base (3) is provided with a lifting drying fan (8).
2. The pharmaceutical powder production oven apparatus according to claim 1, characterized by, The left and right ends of the circular oven (1) and the sealing cover (2) are welded with position-matched connecting blocks (9); the connecting blocks (9) of the circular oven (1) and the connecting blocks (9) of the sealing cover (2) are installed with telescopic cylinders (10) for lifting the sealing cover (2).
3. The pharmaceutical powder production oven apparatus according to claim 1, wherein The lower surface of the circular oven (1) and the upper surface of the sealing cover (2) are provided with air-permeable nets (11) for hot air to pass through.
4. The pharmaceutical powder production oven apparatus according to claim 1, wherein The number of positioning columns (5) is four; the positioning columns (5) are equally distributed along the circular path; the outer side of the positioning column (5) is installed with vertically and equally distributed spring pins (12).
5. The pharmaceutical powder production oven apparatus according to claim 4, wherein The upper end of the mesh tray (6) is installed with a position-matched limiting sleeve (13); the outer side of the limiting sleeve (13) is provided with a positioning hole (14); the positioning hole (14) and the spring pin (12) are connected.
6. The pharmaceutical powder production oven apparatus according to claim 1, wherein The outer side of the drying fan (8) is provided with a mounting plate (15); the mounting plate (15) is located on the inner side of the base (3) and is slidably connected; the mounting plate (15) and the base (3) are provided with a push cylinder group (16).
7. The pharmaceutical powder production oven apparatus according to claim 1, wherein The outer side of the mesh tray (6) is installed with a sealing ring (17) for isolating the inner side space of the circular oven (1) into multiple independent spaces.